[GaneshSuriya]

It's not only about the cost, though. There's an inverse correlation with the glossiness of the content as well.

If the web page /content is too polished, they're most likely optimizing for wooing users.

Unlike a lot of the examples I gave in the sibling comments. Where the optimization is only on the love for the topic being discussed

[rahimnathwani]

  There's an inverse correlation with the glossiness of the content as well.

This is probably due to survivorship bias. Sites that have poor content and poor visual appeal (glossiness) never get on your radar.

i.e. Berkson's Paradox: https://en.wikipedia.org/wiki/Berkson%27s_paradox